Graco 109450 Packing O-Ring

The Graco 109450 Packing O‑Ring is a precision seal designed for EH/GH series displacement pumps, ensuring leak-free operation and consistent pump performance. Key features include:

Material: PTFE for chemical and temperature resistance
Fits: EH/GH200DI, EH/GH300DI and related displacement pumps
Critical for maintaining hydraulic pressure and preventing leaks
OEM replacement for reliable pump performance

$8.92

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Description

Compatible Machines for the 109450 Packing O‑Ring

This genuine Graco part number 109450 (Packing, O‑Ring) serves as a precision seal in select Graco displacement pump and spray assemblies. Below are the known machines/series it fits.

✅ Machines / Pump Assemblies it Fits

Displacement Pump and Hydraulic Motor assembly in Series “EH/GH200DI” (pump model 24M629) — part 109450 listed in parts table. :contentReference[oaicite:1]{index=1}
Displacement Pump and Hydraulic Motor assembly in Series “EH/GH300DI” — part 109450 appears in the parts list for the hydraulic section. :contentReference[oaicite:2]{index=2}
Various Graco EH/GH series industrial spray machines using displacement pumps where part list shows “109450 PACKING, o‑ring”. :contentReference[oaicite:3]{index=3}

???? About the Part

The part 109450 PACKING, O‑RING is a seal used in the hydraulic/pump fluid path of certain Graco industrial spray systems. It appears explicitly in service manuals for EH/GH series displacement pumps. :contentReference[oaicite:4]{index=4}

Before ordering, verify the pump model and service manual parts list for your unit to ensure 109450 is the correct seal. Many pump assemblies use different part numbers for their O‐ring packings.

????️ Key Specifications & Notes

Specification	Details
Part Number	109450 PACKING, O‑RING
Application	Sealing O‑ring in hydraulic/pump module of Graco EH/GH‐series displacement machines. :contentReference[oaicite:5]{index=5}
Design Note	Precision‑moulded seal listed in parts tables of service manuals. (e.g., “65 … 109450 PACKING, o‑ring”) :contentReference[oaicite:6]{index=6}
Compatibility Reminder	Always cross‑check your machine’s serial/model and parts manual — many similar pumps may use a different packing part number.

ℹ️ Additional Compatibility & Important Reminder

While the part 109450 is confirmed for many EH/GH series displacement pumps, it may also appear in other Graco spray – pump – motor assemblies. If your machine is outside the listed series, check the specific service manual or contact Graco support for confirmation.

Frequently Asked Questions

A “Packing, O‑Ring” is a sealing ring used inside the pump/hydraulic fluid path to prevent leakage and maintain pressure integrity. For part 109450, it's installed in the displacement pump module of specific Graco machines.

No — you must match the exact pump model/series and verify the parts‑list. Part 109450 shows up in EH/GH200DI and EH/GH300DI service manuals, but other pumps may require different O‑ring packings.

Installing an incorrect O‑ring packing can lead to leaks, loss of pressure, hydraulic fluid contamination, and ultimately pump or machine failure. Always use the correct OEM part.